Skinner Innovations
Just for fun I took apart a Bendix CDV 742 to see what was inside and how it went together
updated 8 years ago
***noisy area! turn sound down!
***noisy area! turn sound down!
***noisy area! turn sound down!
***noisy area! turn sound down!
***noisy area! turn sound down!!
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IC/SM Alarm Switchboard
NAVSEA number 0965-049-9010
Design Specification MIL-A-17196
IC/SM-4 3448-120
IC/SM-10 3455-210
IC/SM-20 3455-220
IC/SM-30 3455-230
IC/SM-40 3455-240
IC/SM-50 3455-250
IC/SM-60 3455-260
IC/SM-80 3455-280
IC/SM-100 3455-100
IC/SM-120 3455-120
IC/J Thermostatic Switch Fixed Heat Detector
IC/W Water Switch
3464 Smoke Detector
Design Spec: MIL-S-16032
IC/J 105 2805.1 9N5930-00-565-5153
IC/J 125 2806.1 9N5930-00-565-5154
IC/J 150 2807.1 9N5930-00-565-5155
NAVSEA DRAWING NUMBER 815-1197118
Wing Corp 215 Highland Ave Westmont New Jersey 08108
609-854-2225
Fenwal Rate compensation heat detectors are available with temperature settings from 140 to 750 degrees F.
Rate compensation, Rate compensated, or Rate Anticipation heat detectors have a "virtual" set point which varies with temp rate of rise.
The HST applies heat to the detector in a way that makes it possible to determine if the detectors set point has changed significantly. A shift in the detectors set point can occur because of overheating or other physical damage to the heat detector.
runs much better. I am surprised that this cleaned up as well as it did.
The heat detector in this demo is a Fenwal 27121 140 degree rate compensated heat detector
This is in very rough condition lots of rust, stripped plate screw, broken dial foot, cracked pallet jewel. Just for fun I decided to see how well it cleaned up and ran. I think it would actually do pretty well if I could find where the balance is binding up. Seems to improve when placed face down.
Fenwal Rate compensation heat detectors are available with temperature settings from 140 to 725 degrees F.
Rate compensation, Rate compensated, or Rate Anticipation heat detectors have a "virtual" set point which varies with temp rate of rise.
The HST applies heat to the detector in a way that makes it possible to determine if the detectors set point has changed significantly. A shift in the detectors set point can occur because of overheating or other physical damage to the heat detector.
Rate Compensation Verification
Identification of manufacturer, model, and set point of Fenwal DAF Detect A Fire, Fenwal 17343, Fenwal 27121, Thermotech 302, rate compensated, rate of rise and fixed temperature probe type heat detectors
Probe type heat detectors are commonly used in industrial applications and are especially useful for high temperature and hazardous areas. Skinner Innovations manufactures the HST Series Heat Detector Tester which is used to perform heat detector testing / fire alarm inspections on this type of heat detector


